datapath: Fix unused 'done' label build warning in flow.c.

Commit d6b37e42 (datapath: Allow a packet with no input port to omit
ODP_KEY_ATTR_IN_PORT.) was a crossport from commit 18886b6 in the
"master" branch, but dropped a few lines.  This causes a compiler
warning about an unused "done" label.  This commit brings the two
patches in line.

Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>

diff --git a/datapath/flow.c b/datapath/flow.c
index d9e3602..a13edeb 100644 (file)
--- a/datapath/flow.c
+++ b/datapath/flow.c
@@ -922,10 +922,6 @@ int flow_metadata_from_nlattrs(u16 *in_port, __be64 *tun_id,
        if (rem)
                return -EINVAL;
 
-done:
-       if (prev_type == ODP_KEY_ATTR_UNSPEC ||
-           prev_type == ODP_KEY_ATTR_TUN_ID)
-               return -EINVAL;
        return 0;
 }